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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
from ejabberdrpc import EjabberdMetrics
import time
import threading
import socket
from http.server import BaseHTTPRequestHandler, HTTPServer
from socketserver import ThreadingMixIn
class _ThreadingSimpleServer(ThreadingMixIn, HTTPServer):
"""Thread per request HTTP server."""
# Make worker threads "fire and forget". Beginning with Python 3.7 this
# prevents a memory leak because ``ThreadingMixIn`` starts to gather all
# non-daemon threads in a list in order to join on them at server close.
# Enabling daemon threads virtually makes ``_ThreadingSimpleServer`` the
# same as Python 3.7's ``ThreadingHTTPServer``.
daemon_threads = True
address_family = socket.AF_INET6
class Prometheus():
def __init__(self, metrics):
self._metrics = metrics
def _parse_metric(self, name, value, tags=None):
output = name
if isinstance(tags, dict):
output += "{"
first = True
for k, v in tags.items():
if not first:
output += ', '
else:
first = False
output += k+'="'+v+'"'
output += '}'
return output + ' {}\n'.format(value)
def _get_metrics(self):
output = ""
output += self._parse_metric("ejabberd_registered_total", self._metrics.get_registered())
for host in self._metrics.get_vhosts():
output += self._parse_metric("ejabberd_registered_vhosts", self._metrics.get_registered(host), {"vhost": host})
for k, v in self._metrics.get_online_by_node(vhost=host).items():
output += self._parse_metric("ejabberd_online_vhost_node", v, {"vhost": host, "node": k})
for node in self._metrics.get_nodes():
for k, v in self._metrics.get_online_by_status(node=node, vhost=host).items():
output += self._parse_metric("ejabberd_online_status", v, {"vhost": host, "node": node, "status": k})
for k, v in self._metrics.get_online_by_connection(node=node, vhost=host).items():
output += self._parse_metric("ejabberd_online_connection", v, {"vhost": host, "node": node, "connection": k})
for k, v in self._metrics.get_online_by_client(node=node, vhost=host).items():
output += self._parse_metric("ejabberd_online_client", v, {"vhost": host, "node": node, "client": k})
for k, v in self._metrics.get_online_by_ipversion(node=node, vhost=host).items():
output += self._parse_metric("ejabberd_online_ipversion", v, {"vhost": host, "node": node, "ipversion": str(k)})
# next four lines should be dropped - it should be calc by ejabberd_online_vhost_node
for k, v in self._metrics.get_online_by_node().items():
output += self._parse_metric("ejabberd_online_node_total", v, {"node": k})
for k, v in self._metrics.get_online_by_vhost().items():
output += self._parse_metric("ejabberd_online_vhost_total", v, {"vhost": k})
return output
def listen(self, port, addr='::'):
"""Starts an HTTP server for prometheus metrics as a daemon thread"""
class myHandler(BaseHTTPRequestHandler):
def do_GET(r):
r.send_response(200)
r.send_header('Content-type', 'text/html')
r.end_headers()
result = self._get_metrics()
r.wfile.write(result.encode('utf-8'))
httpd = _ThreadingSimpleServer((addr, port), myHandler)
t = threading.Thread(target=httpd.serve_forever)
t.daemon = True
t.start()
if __name__ == "__main__":
metrics = EjabberdMetrics("http://[::1]:4560")
prom = Prometheus(metrics)
prom.listen(8080)
while True:
metrics.update()
time.sleep(10)
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